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PUBLIC UIQ ALT <br />H SERVICES <br />SAN JOAQUIN COUNTY <br />ENVIRONMENTAL HEALTH DIVISION <br />Ernest M. Fujimoto, M.D., M.P.H., Acting Heial;th Officer <br />11 <br />445 N. San Joaquin Street • P.O. Box 388 • Stockton, ICA 95202-0388 <br />(209) 468-3420 I� <br />JOHN STROH �l <br />SAN JOAQUIN MOSQUITO ABATEMENT DISTRICT �. <br />7759 SOUTH AIRPORT <br />STOCKTON CA 95206-3918 I, I JAN 3 0 190E <br />Re: 200 North Beckman, Lodi CA I Site Code: <br />7759 South Airport, Stockton CA I Site Code: <br />I <br />San Joaquin County Public Health Services, Environmelntal Health Division has <br />completed review of the following reports prepared by Weston for the above <br />mentioned sites: <br />200 Beckman: "Soil and Groundwater Investiga <br />7759 Airport: "Soil and Groundwater Investigatio <br />An office meeting was held on January 19, 1995 to disc <br />received in November 1994 and the status of the sites. <br />by you, representing Mosquito Abatement and Mary Me <br />PHS/EHD has provided for your consideration, a summs <br />well as PHS/EHD comments regarding the reports subs <br />200 North Beckman <br />Current Tank Status <br />Tank # <br />Contents <br />Size <br />1849-1 <br />unleaded gas <br />1,000 gal <br />1849-2 <br />weed oil <br />6,500 gal <br />1849-3 <br />larvicide oil <br />7,000 gal <br />1849-4 <br />weed oil <br />6,000 gal <br />1849-5 <br />unleaded gas <br />6,000 gal <br />1849-6 <br />larvicide oil <br />7,500 gal <br />Site Status <br />On May 28, 1986, PHS/EHD received an unauthorized <br />report (UAR) from the Mosquito Abatement District indi <br />(tank #1849-2) weed oil tank failed precision testing on <br />1849 <br />1798 <br />on" dated August 29, 1994; <br />I" dated October 21, 1994. <br />1ss the reports which were <br />The meeting was attended <br />iys, representing PHS/EHD. <br />ry OfIIssues discussed as <br />itted?� <br />il <br />Ij. <br />ail , <br />i <br />Status <br />Removed 8/13/1986 <br />Removed 8/13/1986 <br />.Removed 12/10/1986 <br />Installed 11/6/1986 <br />Installed 11/6/1986 <br />16,stalled 3/6/1987 <br />�u <br />L/contarnination <br />:leassite <br />sting .;that the 6,200 gallon <br />lay 21, 1986. <br />In December 1986, the area around the tanks was excavated to a total depth of 31 <br />feet; however, residual soil contamination was evidenced up to 3,800 ppm TPH, 220 <br />ppm xylene, 79 ppm toluene, and 8.7 ppm benzene. Three monitoring wells were <br />also installed at this time to assess possible impacts to groundwater. <br />r 3 <br />PHS/EHD filed a UAR on May 4, 1988, indicating. that the discharge was stopped on <br />August 13, 1986 with the removal of the tank, that site irnvestigation was in progress <br />and that the three monitoring wells which were installed:idid not detect groundwater <br />contamination. <br />11 <br />A Division of San Joaquin Counly Health Care Scrviccs <br />